Could it be defective? Both of my DA* lenses focus faster than my FA
50/1.4 or FA 35/2. Maybe you should talk to Pentax.
Paul
On Apr 11, 2009, at 6:13 PM, William Robb wrote:
----- Original Message ----- From: "John Whittingham"
Subject: RE: K20D firmware update
Just how slow can it be? Slower than an FA prime?
When I initially tried my first SDM lens I thought it was slow,
until I realised I hadn't enough pressure on the shutter release to
activate AF on the odd occasion Doh!
The 55/1.4 takes almost a second to travel from close focus to
infinity. This is about 3 times longer than what it takes for the
FA50/1.4 to do the same thing.
And while the motor is silent, the mechanism is far from silent.
William Robb
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